1999 TOYOTA SIENNA ABS

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Two buckles and tabs for second right
side seat belt
The 2 tabs have different shape for its
end so that the belt is not buckled in the
wrong place.
Buckle 1—Properly matches with con-
cave end tab
Buckle 2—Properly matches with round
end tab
CAUTION
Make sure the both buckles are cor-
rectly located and securely latched.
Failure to properly match the buckle
and tab may cause serious injury in
case of an accident or a collision.
To release the concave end tab (1), press
the buckle−release button with the round
end tab (2).
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The SRS airbag system mainly consists of
the following components and their loca-
tions are shown in the illustration.
1. Front airbag sensors
2. Airbag module for driver (airbag and
inflator)
3. Airbag module for passenger (airbag
and inflator)
4. Airbag sensor assembly
5. SRS airbag warning light
The airbag sensor assembly consists of a
safing sensor and airbag sensor.In a severe frontal impact, sensors detect
deceleration and the system triggers the
airbag inflators. Then a chemical reaction
in the inflators momentarily fills the air-
bags with non−toxic gas to help restrain
the forward motion of the occupants.
When the airbags inflate, they produce a
fairly loud noise and release some smoke
and residue along with non−toxic gas. This
does not indicate a fire. This gas is nor-
mally harmless, however, for those who
have delicate skin, it may cause minor
skin irritation. Be sure to wash off any
residue as soon as possible to prevent
minor skin irritation.
Deployment of the airbags happens in a
fraction of a second, so the airbags must
inflate with considerable force. While the
system is designed to reduce serious inju-
ries, it may also cause minor burns or
abrasions and swellings.
Parts of the airbag module (steering wheel
hub, dashboard) may be hot for several
minutes, but the airbags themselves will
not be hot. The airbags are designed to
inflate only once.A crash severe enough to inflate the air-
bags may break the windshield as the
vehicle buckles. In vehicles with a pas-
senger airbag the windshield may also be
damaged by absorbing some of the force
of the inflating airbag.
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—Built−in child restraint (bench type second seat)
The built−in child restraint system mainly
consists of two child seats integrated in the
bench type second seat with 5−point seat
belts. Refer to the illustration to become
familiar with the parts of the system. This
child restraint system conforms to U.S.
Federal Motor Vehicle Safety Standard
No.213 and Canada Motor Vehicle Safety
Standard No.213.4.
1. Head restraint
2. Head restraint lock release button
3. Shoulder belts
4. Maximum shoulder height indicator
label
5. Removable pad
6. Seat belt buckle
7. Child seat cushion
8. Seat belt buckle release button
9. Seat belt tabs
10. Owner ’s manual supplement
11. Seat belt adjustment lever
12. Shoulder belt clip
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7. Sit the child on the child seat. Place
a shoulder belt over each shoulder.
Insert the tabs into the buckle.
CAUTION
When the built−in child restraint is
in use, do not use the adult lap and
shoulder belt instead of the built−in
child restraint seat belt as it can
cause severe injury to the child in
a sudden stop or crash.
After inserting the tabs, make sure
the tabs and buckle are locked and
that the shoulder belts and buckle
strap are not twisted.
Do not insert coins, clips, etc. in
the buckle as this may prevent you
from properly latching the tabs and
buckle.
If the seat belt does not function
normally, it cannot protect your
child from injury. Contact your
Toyota dealer immediately. Do not
use the built−in child restraint until
the seat belt is fixed.
8. Fasten the shoulder belt clip.
The purpose of the clip is to keep the
shoulder belts positioned correctly on the
shoulders.
CAUTION
An unfastened shoulder belt clip will
not keep the belts on the child’s
shoulders. In a sudden stop or crash,
the child may go too far forward and
be seriously injured. Make sure the
belt clip is fastened at all times.
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(e) Malfunction Indicator Lamp
This lamp comes on in the following
cases.
a. The fuel tank is completely empty. (See
”Fuel gauge” in Chapter 1−5 for instruc-
tions.)
b. The fuel tank cap is not tightened se-
curely. (See ”Fuel tank cap” in Chapter
1−2 for instructions.)
c. There is a problem somewhere in your
engine or automatic transmission electrical
system.
If it comes on while you are driving in
case c, have your vehicle checked/re-
paired by your Toyota dealer as soon as
possible.
(f) Low Fuel Level Warning Light
This light comes on when the fuel level
in the tank becomes nearly empty. Fill up
the tank as soon as possible.
On inclines or curves, due to the move-
ment of fuel in the tank, the low fuel level
warning light may come on earlier than
usual.(g) Low Oil Pressure Warning Light
This light warns that the engine oil pres-
sure is too low.
If it flickers or stays on while you are
driving, pull off the road to a safe place
and stop the engine immediately. Call a
Toyota dealer or qualified repair shop for
assistance.
The light may occasionally flicker when
the engine is idling or it may come on
briefly after a hard stop. There is no
cause for concern if it then goes out when
the engine is accelerated slightly.
The light may come on when the oil level
is extremely low. It is not designed to
indicate low oil level, and the oil level
must be checked using the level dipstick.
NOTICE
Do not drive the vehicle with the
warning light on—even for one block.
It may ruin the engine.
(h) ”ABS” Warning Light
This light warns that there is a problem
somewhere in your anti−lock brake sys-
tem.
If the light comes on while you are driv-
ing, have your vehicle checked by your
Toyota dealer as soon as possible.
The light will come on when the ignition
key is turned to the ”ON” position. After
a few seconds, the light will go off.
When the ”ABS” warning light is on (and
the brake system warning light is off), the
brake system operates conventionally but
anti−lock brake system is not assisting
brake performance so that the wheels can
lock−up during sudden braking or braking
on slippery road surfaces.
(i) Open Door Warning Light
This light remains on until all the doors
and back door are completely closed.
When the ignition switch is ”OFF” and this
light stays lighting on, the light will turn off
automatically after 30 minutes with the light
flashing five times. See ”Personal lights” and
”Interior light” for details in Chapter 1−4.
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CHECKING SERVICE REMINDER INDICA-
TORS (except the low fuel level warning
light and low windshield washer fluid
level warning light)
1. Apply the parking brake.
2. Open one of the doors.
The open door warning light should
come on.
3. Close the door.
The open door warning light should go
off.
4. Turn the ignition key to ”ACC”.
The SRS airbag warning light should
come on. It goes off after about 6 se-
conds.
5. Turn the ignition key to ”ON”, but do
not start the engine.
All the service reminder indicators ex-
cept the open door warning light, open
power sliding door warning light and
SRS airbag warning light should come
on. The ”ABS” warning light and low
tire pressure warning light go off after
a few seconds.6. Vehicles with a power sliding door:
Open the right side sliding door.
The open power sliding door warning
light should come on.
Close the right side sliding door.
The open power sliding door warning
light should go off.
If any service reminder indicator or warn-
ing buzzer does not function as described
above, either the bulb is burned out or the
circuit is in need of repair. Have it
checked by your Toyota dealer as soon as
possible.
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Brake system
TANDEM MASTER CYLINDER BRAKE
SYSTEM
The tandem master cylinder brake system
is a hydraulic system with two separate
sub−systems. If either sub−system should
fail, the other will still work. However, the
pedal will be harder to press, and your
stopping distance will be longer. Also, the
brake system warning light may come on.
CAUTION
Do not drive your vehicle with only a
single brake system. Have your
brakes fixed immediately.
BRAKE BOOSTER
The brake booster uses engine vacuum to
power−assist the brakes. If the engine
should quit while you are driving, you can
bring the vehicle to a stop with normal
pedal pressure. There is enough reserve
vacuum for one or two stops—but no
more!
CAUTION
Do not pump the brake pedal if the
engine stalls. Each push on the
pedal uses up your vacuum reserve.
Even if the power assist is com-
pletely lost, the brakes will still
work. But you will have to push the
pedal hard—much harder than nor-
mal. And your braking distance will
be longer.
ANTI−LOCK BRAKE SYSTEM (with
”ABS” warning light)
The anti−lock brake system is designed to
automatically help prevent lock−up of the
wheels during sudden braking or braking
on slippery road surfaces. This assists in
providing directional stability and steering
performance of the vehicle under these
circumstances.
The anti−lock brake system becomes op-
erative after the vehicle has accelerated
to a speed in excess of approximately 10
km/h (6 mph). It stops operating when the
vehicle decelerate to a speed below
approximately 5 km/h (3 mph).You may hear a sound and feel a vibra-
tion in the engine compartment for a few
seconds when the engine is started or just
after the vehicle is started. This means
that the anti−lock brake system is in the
self check mode, and does not indicate a
malfunction.
Effective way to press the ”ABS” brake
pedal: When the anti−lock brake system
function is in action, you may feel the
brake pedal pulsating and hear a noise.
In this situation, to let the anti−lock
brake system work for you, just hold the
brake pedal down more firmly. Do not
pump the brake in a panic stop. Pump-
ing the brake pedal makes the stopping
distance longer.
The brake pedal pulsation caused by the
anti−lock brake system may indicate haz-
ardous road surface conditions. Although
the anti−lock brake system assists in pro-
viding vehicle control, it is still important
to drive with all due care, because the
anti−lock brake system cannot overcome
the laws of physics that act on your ve-
hicle:
Braking capability is dependent on tire
friction with the road surface.
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Even though the anti−lock brake sys-
tem is operating, a driver cannot main-
tain full control on certain slippery road
surfaces, when cornering at high
speeds, or in violent maneuvers.
Avoid high speeds on wet roads. The
anti−lock brake system cannot elimi-
nate the risk of hydroplaning and loss
of tire friction.
Always maintain a safe distance from the
vehicle in front of you. Compared with
vehicles not fitted with an anti−lock brake
system, your vehicle may require a longer
stopping distance in the following cases:
Driving on rough, gravel or snow−cov-
ered roads.
Driving with tire chains installed.
Driving on roads where the road sur-
face is pitted or has other differences
in surface height.
Ty p e A
Ty p e B
”ABS” warning light
The light comes on when the ignition key
is turned to the ”ON” position. After a few
seconds, the light will go off.
If either of the following conditions occurs,
this indicates a malfunction somewhere in
the parts monitored by the warning light
system. Contact your Toyota dealer as
soon as possible to service the vehicle.
The light does not come on as de-
scribed above, or remains on.
The light comes on while driving.
Even if the anti−lock brake system should
fail, the brake system will still operate
conventionally. However, when the ”ABS”
warning light is on (and the brake system
warning light is off), the anti−lock brake
system is not assisting brake performance
so that the wheels can lock−up during
sudden braking or braking on slippery
road surfaces. Have your vehicle checked
by your Toyota dealer as soon as pos-
sible.
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